Morphology of Jupiter's Polar Auroral Bright Spot Emissions via Juno-UVS Observations
文献类型：期刊论文
| 作者 | Haewsantati, K.7,8,9; Bonfond, B.8; Wannawichian, S.6,7; Gladstone, G. R.5; Hue, V5; Versteeg, M. H.5; Greathouse, T. K.5; Grodent, D.8; Yao, Z.4,8; Dunn, W.1,2,3 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 126期号:2页码:12 |
| ISSN号 | 2169-9380 |
| 关键词 | aurora Jupiter Juno‐ UVS |
| DOI | 10.1029/2020JA028586 |
| 英文摘要 | Since 2016, the Juno-UVS (Ultraviolet Spectrograph) instrument has been taking spectral images of Jupiter's auroras in their full extent, including the nightside, which cannot be viewed from Earth. We present a systematic analysis of features in Jupiter's polar auroras called auroral bright spots, which were observed by Juno-UVS during the first 25 orbits of the spacecraft. An auroral bright spot is an isolated localized and transient brightening in the polar region. Bright spots were identified in 16 perijoves (PJ) out of 24, mostly in either the northern or the southern hemisphere but rarely in both during the same PJ. The emitted power of the bright spots is time variable with peak power ranging from a few tens to a hundred of gigawatts. Moreover, we found that, for some PJs, bright spots exhibit quasiperiodic behavior. The spots, within PJ4 and PJ16, each reappeared within <2,000 km from the previous position in System III with periods of 28 and 22 min, respectively. This period is similar to periods previously identified in X-rays and various other observations. The bright spot positions are in a specific region in the northern hemisphere in System III, but are scattered around the magnetic pole in the southern hemisphere, near the edge of the swirl region. Furthermore, the bright spots can be seen at any local time, rather than being confined to the noon sector as previously thought from Earth-based observations. This suggests that the bright spots might not be firmly connected to the noon facing magnetospheric cusp processes. |
| WOS关键词 | BURSTS |
| 资助项目 | Science Achievement Scholarship of Thailand (SAST) ; Ph.D. program in Physics, Chiang Mai university ; National Astronomical Research Institute of Thailand (NARIT) ; PRODEX Program of European Space Agency (ESA) ; Southwest Research Institute ; STFC ; SAO fellowship ; ESA ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; NAR-IT ; Thailand Science Research and Innovation[RTA6280002] ; NASA's New Frontiers Program for Juno |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000627265100101 |
| 资助机构 | Science Achievement Scholarship of Thailand (SAST) ; Science Achievement Scholarship of Thailand (SAST) ; Ph.D. program in Physics, Chiang Mai university ; Ph.D. program in Physics, Chiang Mai university ; National Astronomical Research Institute of Thailand (NARIT) ; National Astronomical Research Institute of Thailand (NARIT) ; PRODEX Program of European Space Agency (ESA) ; PRODEX Program of European Space Agency (ESA) ; Southwest Research Institute ; Southwest Research Institute ; STFC ; STFC ; SAO fellowship ; SAO fellowship ; ESA ; ESA ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; NAR-IT ; NAR-IT ; Thailand Science Research and Innovation ; Thailand Science Research and Innovation ; NASA's New Frontiers Program for Juno ; NASA's New Frontiers Program for Juno ; Science Achievement Scholarship of Thailand (SAST) ; Science Achievement Scholarship of Thailand (SAST) ; Ph.D. program in Physics, Chiang Mai university ; Ph.D. program in Physics, Chiang Mai university ; National Astronomical Research Institute of Thailand (NARIT) ; National Astronomical Research Institute of Thailand (NARIT) ; PRODEX Program of European Space Agency (ESA) ; PRODEX Program of European Space Agency (ESA) ; Southwest Research Institute ; Southwest Research Institute ; STFC ; STFC ; SAO fellowship ; SAO fellowship ; ESA ; ESA ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; NAR-IT ; NAR-IT ; Thailand Science Research and Innovation ; Thailand Science Research and Innovation ; NASA's New Frontiers Program for Juno ; NASA's New Frontiers Program for Juno ; Science Achievement Scholarship of Thailand (SAST) ; Science Achievement Scholarship of Thailand (SAST) ; Ph.D. program in Physics, Chiang Mai university ; Ph.D. program in Physics, Chiang Mai university ; National Astronomical Research Institute of Thailand (NARIT) ; National Astronomical Research Institute of Thailand (NARIT) ; PRODEX Program of European Space Agency (ESA) ; PRODEX Program of European Space Agency (ESA) ; Southwest Research Institute ; Southwest Research Institute ; STFC ; STFC ; SAO fellowship ; SAO fellowship ; ESA ; ESA ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; NAR-IT ; NAR-IT ; Thailand Science Research and Innovation ; Thailand Science Research and Innovation ; NASA's New Frontiers Program for Juno ; NASA's New Frontiers Program for Juno ; Science Achievement Scholarship of Thailand (SAST) ; Science Achievement Scholarship of Thailand (SAST) ; Ph.D. program in Physics, Chiang Mai university ; Ph.D. program in Physics, Chiang Mai university ; National Astronomical Research Institute of Thailand (NARIT) ; National Astronomical Research Institute of Thailand (NARIT) ; PRODEX Program of European Space Agency (ESA) ; PRODEX Program of European Space Agency (ESA) ; Southwest Research Institute ; Southwest Research Institute ; STFC ; STFC ; SAO fellowship ; SAO fellowship ; ESA ; ESA ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; Incoming PostDocs in Sciences, Technology, Engineering, Materials and Agrobiotechnology (IPD-STEMA) project from Universite de Liege ; NAR-IT ; NAR-IT ; Thailand Science Research and Innovation ; Thailand Science Research and Innovation ; NASA's New Frontiers Program for Juno ; NASA's New Frontiers Program for Juno |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101053]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Haewsantati, K. |
| 作者单位 | 1.Harvard Smithsonian Ctr Astrophys, Smithsonian Astrophys Observ, 60 Garden St, Cambridge, MA 02138 USA 2.UCL Birkbeck, Ctr Planetary Sci, London, England 3.Univ Coll London, Mullard Space Sci Lab, Dept Space & Climate Phys, Dorking, Surrey, England 4.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophys, Beijing, Peoples R China 5.Southwest Res Inst, San Antonio, TX USA 6.Chiang Mai Univ, Dept Phys & Mat Sci, Fac Sci, Chiang Mai, Thailand 7.Natl Astron Res Inst Thailand, Chiang Mai, Thailand 8.Univ Liege, LPAP, STAR Inst, Liege, Belgium 9.Chiang Mai Univ, PhD Program Phys, Dept Phys & Mat Sci, Chiang Mai, Thailand 10.Boston Univ, Ctr Space Phys, Boston, MA 02215 USA |
| 推荐引用方式 GB/T 7714 | Haewsantati, K.,Bonfond, B.,Wannawichian, S.,et al. Morphology of Jupiter's Polar Auroral Bright Spot Emissions via Juno-UVS Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2021,126(2):12. |
| APA | Haewsantati, K..,Bonfond, B..,Wannawichian, S..,Gladstone, G. R..,Hue, V.,...&Vogt, M. F..(2021).Morphology of Jupiter's Polar Auroral Bright Spot Emissions via Juno-UVS Observations.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,126(2),12. |
| MLA | Haewsantati, K.,et al."Morphology of Jupiter's Polar Auroral Bright Spot Emissions via Juno-UVS Observations".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126.2(2021):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
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